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我正在製作一個應用程序，用戶只需點擊一個按鈕即可通過短信發送他的位置。我在運行在android 5.1上的手機上測試了它，它工作正常，但是當我嘗試在marshmellow上運行它時，它不發送消息。我猜它是因爲運行時權限在這裏的代碼。告訴我，我應該在哪裏傳遞運行時允許應用程序在棉花糖上無法正常工作
import android.Manifest;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.provider.Settings;
import android.content.Intent;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
public Button button;
private LocationManager locationManager;
private LocationListener listener;
private String gpslonla;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
getlocation();
}
});
}
private void getlocation() {
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
listener = new LocationListener() {
@Override
public void onStatusChanged(String s, int i, Bundle bundle) {
}
@Override
public void onProviderEnabled(String s) {
}
@Override
public void onProviderDisabled(String s) {
Intent i = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(i);
}
@Override
public void onLocationChanged(Location location) {
gpslonla=location.getLatitude()+ "," + location.getLongitude();
sendlocationsms();
}
};
configure_button();
}
private void sendlocationsms() {
String phoneNumber = "903399000";
//Location location = new Location("dummyprovider");
SmsManager smsManager = SmsManager.getDefault();
StringBuffer smsBody = new StringBuffer();
smsBody.append("http://maps.google.com?q="+gpslonla);
//smsBody.append(location.getLatitude());
//smsBody.append(",");
//smsBody.append(location.getLongitude());
smsManager.sendTextMessage(phoneNumber, null, smsBody.toString(), null, null);
Toast toast = Toast.makeText(getApplicationContext(), "Your message has been sent", Toast.LENGTH_LONG);
toast.setGravity(Gravity.CENTER, 0, 0);
toast.show();
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
switch (requestCode) {
case 10:
configure_button();
break;
default:
break;
}
}
void configure_button() {
我試圖在這裏檢查短信的權限，並要求它的下面。但那不發送短信。請提供適當的解決方案。謝謝。
// first check for permissions
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(new String[]{Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.INTERNET}
, 10);
}
return;
}
// this code won't execute IF permissions are not allowed, because in the line above there is return statement.
locationManager.requestLocationUpdates("gps", 5000,5000, listener);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main_menu, menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu1:
Toast.makeText(this, "Option1", Toast.LENGTH_SHORT).show();
return true;
case R.id.menu2:
finish();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
沒有說什麼樣的錯誤？ –
您可以檢查在使用onCreate（）啓動自身時或在使用這些單獨功能之前，您嘗試使用的功能的權限。 – Raghavendra
沒有在我的項目中的錯誤，但它不適用於marshmellow – Yash